Home Thai is one of my new favourites. What sets it apart from other eateries is that it boasts some menu items I've rarely found in other restaurants, such as Kao Kreab Pak Mhor (blue dumplings) and Keuw Tiew Lod (noodle rolls). The portion sizes are generous, and the food is served quickly, however, make note of the fact that there's usually a line to get in. If you've got a group of more than 4 people, I'd recommend going for the $20 banquet. With an entrée, four shared mains, dessert and a jug of beer per person, you can't go wrong.
With three restaurants in the Sydney CBD, you can always find your way Home. I'd personally recommend trying the dumplings, as well as any of the noodle dishes. They are delish, and at average prices of $8 for an entrée, and $10 for a main, you won't un-Thai the purse strings too much. The restaurant exhibits a bustling, 'cool' vibe, reminiscent of New York eateries. As it can get quite loud inside, I'd recommend it as a great place for dinner with friends, but not so great for people wanting a quiet evening.